Michoacan, Mexico: No single monarch butterfly completes its migration from Mexico to as far north as Canada and back. Instead, generations of monarchs make this journey born into a relay race no one butterfly finishes. This image is from Great Migratio

LAKE LUGU, CHINA: In the Chinese Musuo religion, each year villagers gather together to honor the chief Musuo goddess Gen Mu in traditional Musuo clothing. In this communal celebration, women are often initiate the flirting with the men. This image is fr

Florence, Italy: Restorers and scientists work on the platform while looking for the lost Leonardo da Vinci mural "The Battle of Anghiari" in the Hall of 500 in Florence's Palazzo Vecchio. This image is from Finding the Lost Da Vinci.